impala::ScopedTimer< T > Class Template Reference

#include <runtime-profile.h>

Collaboration diagram for impala::ScopedTimer< T >:

Public Member Functions
	ScopedTimer (RuntimeProfile::Counter *counter)
void	Stop ()
void	Start ()
void	UpdateCounter ()
void	ReleaseCounter ()
	Updates the underlying counter for the final time and clears the pointer to it. More...
	~ScopedTimer ()
	Update counter when object is destroyed. More...

Private Member Functions
	ScopedTimer (const ScopedTimer &timer)
	Disable copy constructor and assignment. More...
ScopedTimer &	operator= (const ScopedTimer &timer)

Private Attributes
T	sw_
RuntimeProfile::Counter *	counter_

Detailed Description

template<class T>
class impala::ScopedTimer< T >

Utility class to update time elapsed when the object goes out of scope. 'T' must implement the StopWatch "interface" (Start,Stop,ElapsedTime) but we use templates not to pay for virtual function overhead.

Definition at line 705 of file runtime-profile.h.

Constructor & Destructor Documentation

template<class T>

impala::ScopedTimer< T >::ScopedTimer ( RuntimeProfile::Counter *  counter )

inline

Definition at line 707 of file runtime-profile.h.

template<class T>

impala::ScopedTimer< T >::~ScopedTimer ( )

inline

Update counter when object is destroyed.

Definition at line 730 of file runtime-profile.h.

template<class T>

impala::ScopedTimer< T >::ScopedTimer ( const ScopedTimer< T > &  timer )

private

Disable copy constructor and assignment.

Member Function Documentation

template<class T>

ScopedTimer& impala::ScopedTimer< T >::operator= ( const ScopedTimer< T > &  timer )

private

template<class T>

void impala::ScopedTimer< T >::ReleaseCounter ( )

inline

Updates the underlying counter for the final time and clears the pointer to it.

Definition at line 724 of file runtime-profile.h.

template<class T>

void impala::ScopedTimer< T >::Start ( )

inline

Definition at line 715 of file runtime-profile.h.

Referenced by impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), and impala::HashJoinNode::LeftJoinGetNext().

template<class T>

void impala::ScopedTimer< T >::Stop ( )

inline

Definition at line 714 of file runtime-profile.h.

Referenced by impala::CrossJoinNode::GetNext(), impala::HashJoinNode::GetNext(), and impala::HashJoinNode::LeftJoinGetNext().

template<class T>

void impala::ScopedTimer< T >::UpdateCounter ( )

inline

Definition at line 717 of file runtime-profile.h.

Referenced by impala::ScopedTimer< impala::MonotonicStopWatch >::ReleaseCounter(), and impala::ScopedTimer< impala::MonotonicStopWatch >::~ScopedTimer().

Member Data Documentation

template<class T>

RuntimeProfile::Counter* impala::ScopedTimer< T >::counter_

private

Definition at line 741 of file runtime-profile.h.

Referenced by impala::ScopedTimer< impala::MonotonicStopWatch >::ReleaseCounter(), and impala::ScopedTimer< impala::MonotonicStopWatch >::UpdateCounter().

template<class T>

T impala::ScopedTimer< T >::sw_

private

Definition at line 740 of file runtime-profile.h.

Referenced by impala::ScopedTimer< impala::MonotonicStopWatch >::ScopedTimer(), impala::ScopedTimer< impala::MonotonicStopWatch >::Start(), impala::ScopedTimer< impala::MonotonicStopWatch >::Stop(), impala::ScopedTimer< impala::MonotonicStopWatch >::UpdateCounter(), and impala::ScopedTimer< impala::MonotonicStopWatch >::~ScopedTimer().

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The documentation for this class was generated from the following file:

• be/src/util/runtime-profile.h